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Eraser The Texture

The eraser can erase the pencil, Eraser which was first discovered by 1770 British scientist Priestley. Before that, people use a sponge to erase the pencil. Sponge covered with holes, and soft, flexible, with its water is very good, but use it to brush pencil writing, but can not be satisfactory.

The discovery of Stryley caused a great sensation because it brought great convenience to people. But the earliest rubber is made of natural rubber, rub the word can not afford to debris, but the end of the pencil on the rubber, the more rub the more dirty. Later, people in the production of rubber by adding sulfur and oil and other substances, so that the rubber is easy to fall off, the eraser pencil with the debris to leave the rubber, Eraser so that the rubber can often keep clean, Dirty.

Eraser is made of PVC material, but added plasticizer ATBC. Use physical principles (non-magical pen) to remove the handwriting (not only the pencil) from the surface of the object to be written (excluding the alteration and correction fluid).

Some pencils have a small eraser at the end of the pencil. These erasers are mostly pink, the surface is smooth gum. They have good performance on most occasions, Eraser but if they are too heavy, the eraser will break the paper. When the handwriting is wiped off, the eraser will leave the residue on the paper. If the poor, these residues will leave traces on the paper (Note: This is more than 04 years, all of the vinyl rubber and the surface did not add gum red rubber, bought the root of the Chinese pencil, Eraser found Rubber may be loose or loose, absolutely false).

Another eraser is a commonly used brown rubber eraser, made of soft and rough rubber. It is designed to facilitate the removal of large areas of traces, Eraser and will not break the paper. But this eraser does not erase the handwriting effectively and accurately.

Another artist commonly used eraser called soft rubber. It is mainly made of a gray material, Eraser and rubber with rubber. Its strength so that it will not leave the residue, Eraser so its life than other eraser to long. It removes the handwriting by "absorbing" the graphite. This eraser can not only wipe the handwriting (in fact it can accurately remove the handwriting), Eraser it can also be used to highlight the important part or make the work more detailed. However, Eraser it is not good at removing large areas of handwriting, and if excessive heat will stain or even stick to paper.

The soft polyvinyl rubber eraser has a plastic texture and has the same function as an ordinary pink eraser. These erasers are more soft than the pink eraser, Eraser so it is less likely to damage the paper. Polyvinyl eraser is generally white.

The average student uses an eraser with a scent. This smell is a volatile oil, Eraser if the plastic and eraser put together for a long time, Eraser erupted from the eraser oil (organic solvent) can dissolve a small amount of plastic, which resulted in we saw the eraser corrosion in the Stationery above.

Due to the softness and structure of the eraser. Home life, you can use the eraser to remove some stains. For example, the cleaning of the computer memory can be wiped with a dry soft eraser. Take an eraser in the phone shell to rub back and forth a few times, Eraser so that the dirt on the phone shell easy to remove.

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